Supporters throw confetti at workers as they march near the Presidential Palace in Manila to celebrate international Labor Day known as May Day in the Philippines. Thousands of workers marched under a brutal sun in Manila to demand a wage increase amid an onslaught of oil price increases, but the Philippine President rejected a $3 daily pay hike which the workers have been demanding since 1999 and warned may worsen inflation, spark layoffs and turn away foreign investors.(Bullit Marquez/AP Photo/Bullit Marquez/AP Photo)

People gather at the Rathausplatz in front of the Burgtheater during the Austrian Social Democrats' May Day celebrations in Vienna.(Herwig Prammer/REUTERS/Herwig Prammer/REUTERS)

France's far-right National Front candidate for the presidential election Marine Le Pen, center, delivers her speech at Opera during the traditional May Day march in Paris. After Socialist party candidate Francois Hollande won a slim upper hand in the first round of voting, President and conservative candidate Nicolas Sarkozy candidly ogled voters of the far-right National Front whose candidate, Marine Le Pen, placed a solid third.(Francois Mori/AP Photo/Francois Mori/AP Photo)

Indonesian workers display mock dead bodies representing the death of capitalism and imperialism during a rally to mark May Day in Jakarta, Indonesia. Thousands of Indonesian workers staged the rally demanding the government to raise minimum wage and reject outsourcing.(Dita Alangkara/AP Photo/Dita Alangkara/AP Photo)

A Lebanese leftist activist holds up a hammer and sickle, a symbol of communism, during a demonstration to mark Labour Day, or May Day, in Beirut.(Sharif Karim/REUTERS/Sharif Karim/REUTERS)

Protesters burn an effigy of President Benigno Aquino as thousands of workers rally for rights and better wages as part of Labour Day, near the Presidential Palace in Manila.(Cheryl Ravelo/Reuters/Cheryl Ravelo/Reuters)

North Koreans dip their hands in a stream in Pyongyang, North Korea, on May Day. North Korean families flocked to parks, playgrounds and plazas to enjoy the May Day holiday with picnics, cultural events and games.(Kim Kwang Hyon/AP Photo/Kim Kwang Hyon/AP Photo)

Participants march during a rally organised by the Russian Federation of Trade Unions to celebrate International Workers' Day, or Labour Day, in Moscow.(Sergei Karpukhin/REUTERS/Sergei Karpukhin/REUTERS)

Workers from the Korean Confederation of Trade Unions (KCTU) sing during a May Day rally at Seoul City Hall Plaza in central Seoul. Thousands of workers demanded in the rally that the government improve temporary employees' working conditions.(Kim Hong-Ji/REUTERS/Kim Hong-Ji/REUTERS)

A demonstrator holds a sign caricaturing a U.S. dollar note with the face of Spain's Prime Minister Mariano Rajoy during a May Day demonstration on Labour Day in central Madrid. Thousands of workers across southern Europe protested against spending cuts in May Day rallies on Tuesday.(Susana Vera/REUTERS/Susana Vera/REUTERS)

An activist of Sri Lanka's Marxist political party, People's Liberation Front, drinks water from a bottle as a billboard of Communist leaders from left, Vladimir Lenin, Karl Marx and Friedrich Engels is displayed in the background during a street march to celebrate international Labor Day known as May Day in Colombo, Sri Lanka.(Gemunu Amarasinghe/AP Photo/Gemunu Amarasinghe/AP Photo)

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